Rhinoceros Hornbill

Buceros rhinoceros

The Rhinoceros Hornbill lives in Southeast Asia, in Malay
Peninsula, Sumatra, Borneo, and Java. Its beak and casque are
naturally white but during the lifetime of the bird are colored
orange and red, due to the constant rubbing of the beak against a
gland beneath its tail, which exudes an orange-red fluid. Its
food is primarily fruit and it is especially fond of figs. Pairs
inhabit the tops of the tallest trees. As it flies overhead the
wings make a surprisingly loud strenuous "chuffling"
that reminds one of a laboring locomotive. The population of the
Rhinoceros hornbill is in decline, except in a few reserves, with
less than 500 individuals remaining in Java and less than 2,500
in Kalimantan.